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A CSU/DSU (Channel Service Unit/Data Service Unit) is a hardware device about the size of an external modem that converts a digital data frame from the communications technology used on a local area network (LAN) into a frame appropriate to a ... Continue Reading

Wi-Fi Multimedia (WMM), previously known as Wireless Multimedia Extensions (WME), is a subset of the 802.11e wireless LAN (WLAN) specification that enhances quality of service (QoS) on a network by prioritizing data packets according to four ... Continue Reading

Network Based Application Recognition (NBAR) is a mechanism that classifies and regulates bandwidth for network applications to ensure that available resources are utilized as efficiently as possible. Cisco Systems developed NBAR as part of its ... Continue Reading

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Learn about the newest wireless protocol, 802.11n, as well as how to evaluate which protocol is best for your environment. You also get a run-down of the 802.11a, 802.11b and 802.11g specifications in this guide.Continue Reading

This networking certification guide covers the majority of networking-related certifications available to IT professionals. Only credentials likely to be recognized as having value within the networking industry have been selected, which led us to ...Continue Reading

Route summarization, also called route aggregation, is a method of minimizing the number of routing tables in an IP (Internet Protocol) network. It works by consolidating selected multiple routes into a single route advertisement, in contrast to ...Continue Reading

Network management is a complex topic, especially as the network has to handle more instances of unified communications, video, and virtualization. Thus far, two frameworks exist that can be of some use for understanding and taming network ...Continue Reading

OA&M (operations, administration, and management) is a general term used to describe the costs, tasks involved, or other aspects of operating, administering, and managing something such as a computer network.Continue Reading